氟化物計 的英文怎麼說
中文拼音 [fúhuàwùjì]
氟化物計
英文
fluoride meter-
The supplemental environmental projects include funding for a research program to evaluate the potential for fluorotelomer biodegradation ; and funding for microchemistry and green chemistry programs in certain west virginia schools
這兩個環保項目包括:為一個評估氟調聚物生物降解性的研究計劃提供資金,以及資助在西維吉尼亞州的若干個學校開展微量化學和綠色化學的項目。This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and
本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是:根據光學玻璃的物理與化學性能,選擇輕型鏡坯材料;用有限元法對鏡子的變形進行分析、計算,找出變形規律,優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構;分析玻璃切削原理,設計專用磨輪結構,選擇合理工藝技術參數,完成400mm平面鏡輕量化減重孔的加工;分析氫氟酸腐蝕光學玻璃機理,尋找最佳酸濃度、腐蝕作用時間等工藝參數,實現400mm平面鏡減重孔應力與微裂紋的消除;討論分離器加工原理和工藝技術特點,完成400mm平面輕型鏡面形加工。The main research now is focused on the polymerization of difluoramino substituted oxetane monomers, the preparation of neopentyl difluoramino nitrato plasticizers, and the molecular design and synthesis of cyclic n - nitramino geminal difluoramino oxidizers
目前該領域的研究工作主要集中在二氟氨基取代環氧丁烷聚合物合成,新戊基二氟氨基硝酸酯增塑劑制備,以及環n -硝胺基偕二氟氨基氧化劑的分子設計與合成上。Methods water sample was treated by electromagnetic fields, and the turbidity value and fluoride in water sample before and after treatment were detected
方法利用復合電磁場對實驗室模擬水樣和現場水樣進行處理,檢測處理前後水中的渾濁度、氟化物濃度,並計算去除率。In the case of the unsaturated alcohols, such as hydroxyethyl acrylate ( hea ), the paes showed the photo - alignment property to the nematic liquid crystals with the pretilt angle of 0. 60 ? secondly, three kinds of fluoro - containing diamine monomers were prepared via the reduction reactions of the corresponding dinitro compounds, which were synthesized via the nitro nucleophilic displacement reactions of 3, 5 - dinitro - 5 - trifluoromethyl benzene with diphenol compounds
此外,本論文還設計並通過3 , 5 -二硝基三氟甲苯與二酚化合物的硝基親核取代反應制備了二硝基化合物,將其還原最終合成了三種間位取代的含氟二胺單體tfpda 、 tfbpda與tfmda ,並對其聚合行為進行了研究。The result shows that the value of fluoride density produced by all aluminum factories didn ' t exceed the city standard, but exceeded the agriculture standard
計算結果表明:擬建或已經在生產的各鋁廠氟化物排放量均不超過按城市標準計算出的環境容量值,但均超過按農業區標準計算出的環境容量值。Using the inverse model to calculate the distribution of source density, based on gauss smoke plume ' s standard density distribution, environmental capacity of fluoride in the air of northern suburban in xining was found
摘要由高斯煙羽模式推導出的標準濃度分佈推算源強分佈的反演模式方法,計算了西寧市北郊地區環境空氣中氟化物的環境容量。By formula about effective bandwidth, he get the bandwidth near 1540 nm wavelength, which is 64. 54nm. the bandwidth is more bigger than the gain bandwidth of er - doped silica fiber and fluoride fiber amplifier ( 20nm - 30nm ). it is useful to improve transmitted capacity of information in fiber
對1540nm處光譜有效帶寬的計算,得到結果為64 . 54nm ,這個帶寬已遠高於目前常用摻er硅光纖和氟化物光纖放大器的20 - 30nm增益帶寬,于擴大光纖信息傳輸容量有很大益處。Communication cables - common design rules and construction - poly tetrafluoroethylene - hexafluoropropylene insulation and sheathing
通信電纜.通用設計規則和製造.聚四氟乙烯-聚六氟丙烯fep絕緣和鎧裝化合物Industrial pollution has been a problem in certain areas of hong kong, and 12 parameters relating to metals and metalloids were initially used in 1986 to measure the degree of such pollution. these parameters are aluminium, arsenic, boron, cadmium, chromium, copper, iron, mercury, manganese, nickel, lead, and zinc. in 1997, another seven were added antimony, barium, beryllium, molybdenum, silver, thallium, and vanadium, making a total of 19
香港部分地區多年來一直受工業污染的困擾, 1986年河溪水質監測計劃推行初期我們用12項金屬及準金屬參數來檢驗工業污染水平:鋁砷硼鎘鉻銅鐵汞錳鎳鉛及鋅其後在1997年起另添加了七項新參數:銻鋇鈹鉬銀鉈及釩,監測的參數共19項,此外並測試了四項與工商業污染有密切關系的參數,即氰化物總量氟油脂及洗滌劑。Us president george w. bush planning to push for faster elimination of ozone - damaging chemicals called hydro chlorofluorocarbon, or cfcs
美國總統布希計劃加速管制禁用破壞臭氧層的含氯氟碳化物。About fluoropolymers : fluoropolymers are used in architectural fabrics ; chemical processing piping and vessels ; automotive fuel systems ; telecommunications and electronic wiring insulation ; and computer chip processing equipment and systems - in addition to consumer products such as cookware and apparel
有關氟聚合物:氟聚合物除了應用在炊具和服裝等消費產品上,也用於建築構造、化學工藝管道、汽車燃油系統、電訊及電子絕緣線圈,以及計算機晶元加工設備和系統中。分享友人